DE69110986T2 - Schaltung zur Ermittlung des durchschnittlichen Pegels eines Bildsignals. - Google Patents

Schaltung zur Ermittlung des durchschnittlichen Pegels eines Bildsignals.

Info

Publication number
DE69110986T2
DE69110986T2 DE69110986T DE69110986T DE69110986T2 DE 69110986 T2 DE69110986 T2 DE 69110986T2 DE 69110986 T DE69110986 T DE 69110986T DE 69110986 T DE69110986 T DE 69110986T DE 69110986 T2 DE69110986 T2 DE 69110986T2
Authority
DE
Germany
Prior art keywords
determining
circuit
image signal
average level
average
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
DE69110986T
Other languages
English (en)
Other versions
DE69110986D1 (de
Inventor
Atsuhisa Kageyama
Hideaki Sadamatsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE69110986D1 publication Critical patent/DE69110986D1/de
Publication of DE69110986T2 publication Critical patent/DE69110986T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Amplifiers (AREA)
DE69110986T 1990-07-19 1991-07-12 Schaltung zur Ermittlung des durchschnittlichen Pegels eines Bildsignals. Expired - Fee Related DE69110986T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2189471A JP2764761B2 (ja) 1990-07-19 1990-07-19 映像信号平均輝度レベル検出装置

Publications (2)

Publication Number Publication Date
DE69110986D1 DE69110986D1 (de) 1995-08-10
DE69110986T2 true DE69110986T2 (de) 1995-12-21

Family

ID=16241820

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69110986T Expired - Fee Related DE69110986T2 (de) 1990-07-19 1991-07-12 Schaltung zur Ermittlung des durchschnittlichen Pegels eines Bildsignals.

Country Status (7)

Country Link
US (1) US5223927A (de)
EP (1) EP0467223B1 (de)
JP (1) JP2764761B2 (de)
KR (1) KR940011066B1 (de)
CA (1) CA2046774C (de)
DE (1) DE69110986T2 (de)
MY (1) MY106186A (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0514929B1 (de) * 1991-05-23 1999-09-22 Nec Corporation Logarithmischer Verstärker für Zwischenfrequenzsignale
JPH05151705A (ja) * 1991-11-27 1993-06-18 Hitachi Ltd ビデオ信号処理装置および信号処理回路
US5391944A (en) * 1992-01-22 1995-02-21 Matsushita Electric Industrial Co., Ltd. Image-tone control circuit and gradient adjusting circuit therefor
US5453798A (en) * 1993-02-05 1995-09-26 Thomson Consumer Electronics, Inc. Black compensation circuit for a video display system
US5367211A (en) * 1993-06-28 1994-11-22 Harris Corporation Differential amplifier with hysteresis
JPH09130646A (ja) * 1995-11-01 1997-05-16 Nec Corp 映像信号の平均輝度レベル検出回路
JP3998636B2 (ja) * 2003-12-26 2007-10-31 株式会社東芝 映像処理装置
US7209577B2 (en) * 2005-07-14 2007-04-24 Logitech Europe S.A. Facial feature-localized and global real-time video morphing
US20070230794A1 (en) * 2006-04-04 2007-10-04 Logitech Europe S.A. Real-time automatic facial feature replacement
JP4863375B2 (ja) * 2006-09-28 2012-01-25 日東工業株式会社 配線用遮断器
KR20130133499A (ko) * 2012-05-29 2013-12-09 삼성디스플레이 주식회사 유기전계발광 표시장치 및 그의 구동방법

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE49023C (de) * E. JÜPTNER in Wien Vorrichtung zum Befestigen von Damenhüten auf dem Kopfe
DD49023A (de) *
US3569620A (en) * 1969-03-21 1971-03-09 Rca Corp Automatic video signal gain controlling apparatus
GB1451830A (en) * 1974-07-30 1976-10-06 Inst Elektroniki I Vychesletel Apparatus for processing video signals
JPS564905A (en) * 1979-06-27 1981-01-19 Toshiba Corp Voltage-current converting circuit
US4340904A (en) * 1980-12-24 1982-07-20 General Electric Company Automatic gray scale tracking system for cathode ray display devices
US4543614A (en) * 1984-01-23 1985-09-24 Rca Corporaton Video sync validity detector
JPS61140279A (ja) * 1984-12-12 1986-06-27 Toshiba Corp 映像信号処理回路
US5162902A (en) * 1991-12-16 1992-11-10 Thomson Consumer Electronics, Inc. Non-linear luminance signal processor responsive to average picture level (APL) of displayed image

Also Published As

Publication number Publication date
JPH0479481A (ja) 1992-03-12
EP0467223B1 (de) 1995-07-05
CA2046774C (en) 1995-05-16
US5223927A (en) 1993-06-29
CA2046774A1 (en) 1992-01-20
MY106186A (en) 1995-03-31
JP2764761B2 (ja) 1998-06-11
KR920003742A (ko) 1992-02-29
KR940011066B1 (ko) 1994-11-22
DE69110986D1 (de) 1995-08-10
EP0467223A1 (de) 1992-01-22

Similar Documents

Publication Publication Date Title
DE69105760D1 (de) Einrichtung zur Signalverarbeitung.
DE3888008T2 (de) Verfahren zur Bestimmung des Sollbereiches eines Bildsignals.
DE69016951T2 (de) System zur Bestimmung der Tonerfüllhöhe.
DE69127795D1 (de) Vorrichtung zur Bilddetektierung
DE69019589T2 (de) Vorrichtung zur Ermittlung eines Bildbewegungsvektors.
DE69208737D1 (de) Schaltung zur Interpolation eines Bildsignals
DE68921949D1 (de) System zur Kodierung eines Bildsignals.
DE69110986T2 (de) Schaltung zur Ermittlung des durchschnittlichen Pegels eines Bildsignals.
DE69115097T2 (de) Gerät zur Bildverarbeitung.
DE69009544D1 (de) Beeinflussung eines Bildes.
DE69016089D1 (de) Gerät zur Ermittlung des Übersprechniveaus eines optischen Lesesignales.
DE69213585D1 (de) Signalpegel-Anzeigevorrichtung
DE69114581D1 (de) Vorrichtung zur Bilderzeugung.
DE69118239T2 (de) Pegel-Erkennungsschaltung
DE69121732D1 (de) Bildsignalverarbeitungsschaltung
DE69014831D1 (de) Schaltung zur Quotientenmessung mit verbesserter Rauschunterdrückung.
DE69117603T2 (de) Schaltung zur Kompensierung des Schwarzpegels
DE69828855D1 (de) Schaltung zur detektion des schwarzwertpegels eines videosignals
DE69122855D1 (de) Vorrichtung zur dynamischen stufenwertdiskretisierung
DE69113581T2 (de) Schaltung zur Detektion des Bewegungssignals.
DE69530360T2 (de) Fehlervarianzschaltung zur Verbesserung eines Bildsignals
DE3677547D1 (de) Schaltungsanordnung zur verbesserung des kontrastes eines videobildes.
DE69130413D1 (de) Bildsignalverarbeitung
DE69111624D1 (de) Schaltung zur Konturenbetonung eines Farbsignals.
DE69628081D1 (de) Schaltung zur automatischen Kompensation des Pegels eines Videosignals

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee